Rapid consolidation of powdered materials by induction hot pressing.

Autor: LaLonde AD; Materials Science, California Institute of Technology, Pasadena, California 91125, USA., Ikeda T, Snyder GJ
Jazyk: angličtina
Zdroj: The Review of scientific instruments [Rev Sci Instrum] 2011 Feb; Vol. 82 (2), pp. 025104.
DOI: 10.1063/1.3534080
Abstrakt: A rapid hot press system in which the heat is supplied by RF induction to rapidly consolidate thermoelectric materials is described. Use of RF induction heating enables rapid heating and consolidation of powdered materials over a wide temperature range. Such rapid consolidation in nanomaterials is typically performed by spark plasma sintering (SPS) which can be much more expensive. Details of the system design, instrumentation, and performance using a thermoelectric material as an example are reported. The Seebeck coefficient, electrical resistivity, and thermal diffusivity of thermoelectric PbTe material pressed at an optimized temperature and time in this system are shown to agree with material consolidated under typical consolidation parameters.
Databáze: MEDLINE